Ornamental chain



FIG. 1 is a front elevational view of an ornamental chain showing my new design; the opposite side being identical;

FIG. 2 is a side elevational view, the opposite side being a mirror image;

FIG. 3 is an enlarged cross-sectional view taken along the lines 3--3 of FIG. 1; and,

FIG. 4 is an enlarged partial perspective view. 

The ornamental design for an ornamental chain, as shown and described. 